Lots of bootstrap script clean ups#2326

mmlb wants to merge 8 commits into

developsupabase/postgres:developfrom

manny/psql-1450-minimize-apt-get-updatesupgrades-1-at-start-1-at-endsupabase/postgres:manny/psql-1450-minimize-apt-get-updatesupgrades-1-at-start-1-at-endCopy head branch name to clipboard